Improvement in boot and shoe-machines



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Letters Patent N 94,801, dated September 14, 1869.

IMPROVEMENT IN BOOT AND SHOE-MACHINES.

The Schedule referred to in these Letters Patent and making part of the lame.

To all whom it may concern Be it known that I, J OHN E. \VIGGIis, of Stonehani, in the county of Middlesex, and State of Massachusetts, have invented certain new and useful Iniprovements in Machines for Rubbing Down Scams of Boots and Shoes; and I do hereby declare that the following is a full and exact description thereof, reference heinghad to the accompanying drawings,alul to the letters of reference marked thereon.

The nature of my invention consists in connecting to the rubber-arm two rubbers; the motion of the arm being such, that in no case will either of the rubbers rub against the end of the seam.

To enable others skilled in the art to make and use my invention, I will proceed to describe its construction and use.

Drawings.

' O, figs. 1 and 2, is a slotted guide-piece, having a slot, 1), in which a pin, f, attached to the rubber-arm F, slides, thus guiding this end of the rubber-arm. The slot D may be curved, as represented in the drawings, or, if desirable, may be straight.

E, fig. 1, is a crank-disk, to which the rubber-arm I F is attached by the crank-pin L H and H are the two rubbers,'made in 'form substantially as shown.

K is a pressure-lever, pivoted at L, as shown.

M is a pressure-lever, pivoted at N, and being connected at N, by means of cords, straps, or chains, to a foot-lever, not shown.

I represents the article being operated upon.

The pressure-lever M bears upon a spring, 1) 11, fig. 2, attached to the under side of the supporting-lever K, so that the pressure brought to bear upon the stock will not be too rigid.

The motion given to the rubbing-arm F may be varied to suit the article to be acted upon, by moving the crank-pin L toward or from the centre of the disk E.

From an inspection of the drawings, it will be seen, that, supposing 'the disk to be revolved in the direction of the arrow, the rubber H, as it passes off from the scam in its forward motion, will press hard upon it; but as the crank L passes the dead-point, the rear end of the lever will be depressed, thus elevating the rubber H, so that, as it is drawn back, it will not touch the end of the scam, the rubber H only acting as shown in fig. 2. As the crank-pin L passes the rear dead-point, the rubber H will be elevated, as represented by the red lines, fig. 2, and thus clear the end of the seam.

What I claim as my invention, and desire to secure by Letters Patent, is-

1. The rubbers H and H, in combination with the rubbing-arm F and crank-disk E, operated substantially as described, and for the purpose set forth.

2. The combination and arrangement of the supporting-lever K, spring p, and pressure-lever M, substantially as described, and for the purpose set forth.

J. E. WIGGIN.

\Vitnesses FRANK G. PARKER, A..HUN BERRY. 

